Home / 47,430.18-65,462.70-31,269.12

Finding the Fourth Proportional to 47,430.18, 65,462.70 and 31,269.12

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Solution

The fourth proportional to 47,430.18, 65,462.70 and 31,269.12 is: 43,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,430.18 : 65,462.70 = 31,269.12 : x
  2. Step 2: Convert to fraction form
    47,430.18/65,462.70 = 31,269.12/x
  3. Step 3: Cross multiply
    47,430.18x = 65,462.70 × 31,269.12
  4. Step 4: Simplify right side
    47,430.18x = 2,046,961,021.82
  5. Step 5: Solve for x
    x = 2,046,961,021.82/47,430.18
  6. Step 6: Final answer
    x = 43,157.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.